Finding the Fourth Proportional to 922,357.73, 1,272,854.21 and 498,421.73
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Solution
The fourth proportional to 922,357.73, 1,272,854.21 and 498,421.73 is: 687,822.28
Step by Step Solution
- Step 1: Write the proportion equation
922,357.73 : 1,272,854.21 = 498,421.73 : x - Step 2: Convert to fraction form
922,357.73/1,272,854.21 = 498,421.73/x - Step 3: Cross multiply
922,357.73x = 1,272,854.21 × 498,421.73 - Step 4: Simplify right side
922,357.73x = 634,418,194,893.88 - Step 5: Solve for x
x = 634,418,194,893.88/922,357.73 - Step 6: Final answer
x = 687,822.28
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.